The official population count of the various ethnic groups in Africa has in some instances been controversial because certain groups believe populations are fixed to give other ethnicities numerical superiority (as in the case of Nigeria's Hausa, Fulani, Yoruba and Igbo people).[1][2][3] The following ethnic groups number 10 million people or more:

^ abcPeter Austin, One Thousand Languages (2008), p. 75, books.google.com/books?isbn=0520255607:"Kanuri is a major Saharan language spoken in the Lake Chad Basin in the Borno area of northeastern Nigeria, as well as in Niger, Cameroon, and Chad (where the variety is known as Kanembul[)]."

^Peoples of Africa: Burkina Faso-Comoros - Volume 2 (2001), p. 86, books.google.com/books?isbn=076147160X:"The Central African Republic is a land of many different peoples... The Sara (SAHR) live in the grain-growing lands of the north as well as across the border in Chad."